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134
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EDBT
2009
ACM
127views Database» more  EDBT 2009»
15 years 10 months ago
Answering aggregate keyword queries on relational databases using minimal group-bys
Keyword search has been recently extended to relational databases to retrieve information from text-rich attributes. However, all the existing methods focus on finding individual...
Bin Zhou 0002, Jian Pei
146
Voted
ADC
2008
Springer
146views Database» more  ADC 2008»
15 years 10 months ago
A Typed Higher-Order Calculus for Querying XML Databases
As the eXtensible Markup Language (XML) is about to emerge as a new standard for databases, the problem of providing solid logical grounds for XML query languages arises. For the ...
Qing Wang, Klaus-Dieter Schewe
120
Voted
TIME
2000
IEEE
15 years 8 months ago
Towards a Theory of Movie Database Queries
We present a data model for movies and movie databases. A movie is considered to be a 2-dimensional semialgebraic figure that can change in time. We give a number of computabilit...
Bart Kuijpers, Jan Paredaens, Dirk Van Gucht
141
Voted
CIKM
2008
Springer
15 years 5 months ago
Estimating the number of answers with guarantees for structured queries in p2p databases
Structured P2P overlays supporting standard database functionalities are a popular choice for building large-scale distributed data management systems. In such systems, estimating...
Marcel Karnstedt, Kai-Uwe Sattler, Michael Ha&szli...
118
Voted
TKDE
1998
126views more  TKDE 1998»
15 years 3 months ago
Dictionary: A New Access Method for Query Processing in Object-Oriented Databases
—We present a new access method, called the path dictionary index (PDI) method, for supporting nested queries on object-oriented databases. PDI supports object traversal and asso...
Wang-Chien Lee, Dik Lun Lee